:root{--bg: #f5f6f8;--panel: #ffffff;--border: #e1e4e8;--text: #1f2328;--text-muted: #6b7280;--primary: #2563eb;--primary-dark: #1d4ed8;--danger: #dc2626;--success: #16a34a;--radius: 6px;font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}a{color:var(--primary);text-decoration:none}h1,h2,h3{margin:0 0 12px}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;background:#111827;color:#e5e7eb;flex-shrink:0;display:flex;flex-direction:column;padding:16px 0}.sidebar .brand{font-weight:600;font-size:15px;padding:0 16px 16px;border-bottom:1px solid #1f2937;margin-bottom:8px}.sidebar nav{display:flex;flex-direction:column;gap:2px;flex:1}.sidebar nav a{color:#cbd5e1;padding:9px 16px;font-size:14px}.sidebar nav a:hover{background:#1f2937}.sidebar nav a.active{background:var(--primary);color:#fff}.sidebar .user-info{padding:12px 16px;font-size:12px;color:#9ca3af;border-top:1px solid #1f2937}.main{flex:1;padding:24px 32px;max-width:1200px;width:100%}.topbar{display:none}.icon-button{background:none;border:none;padding:8px;color:inherit;cursor:pointer}.drawer-backdrop{display:none}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:20px}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}th{color:var(--text-muted);font-weight:600;font-size:12px;text-transform:uppercase}input,select,textarea{padding:7px 10px;border:1px solid var(--border);border-radius:var(--radius);font-size:13px;width:100%}label{font-size:12px;color:var(--text-muted);display:block;margin-bottom:4px}.field{margin-bottom:12px}.form-row{display:flex;gap:12px}.form-row>.field{flex:1}button{background:var(--primary);color:#fff;border:none;padding:8px 14px;border-radius:var(--radius);cursor:pointer;font-size:13px}button:hover{background:var(--primary-dark)}button.secondary{background:#e5e7eb;color:var(--text)}button.secondary:hover{background:#d1d5db}button:disabled{opacity:.5;cursor:not-allowed}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}.stat-tile{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:14px}.stat-tile .value{font-size:22px;font-weight:600}.stat-tile .label{font-size:12px;color:var(--text-muted)}.error-banner{background:#fef2f2;border:1px solid #fecaca;color:var(--danger);padding:10px 14px;border-radius:var(--radius);margin-bottom:14px;font-size:13px}.success-banner{background:#f0fdf4;border:1px solid #bbf7d0;color:var(--success);padding:10px 14px;border-radius:var(--radius);margin-bottom:14px;font-size:13px}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:16px}.tabs button{background:none;color:var(--text-muted);border-radius:0;border-bottom:2px solid transparent;padding:8px 14px}.tabs button.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}.tabs button:hover{background:none;color:var(--primary)}.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:11px;font-weight:600;background:#e5e7eb;color:var(--text)}.login-screen{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-box{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px;width:340px}@media (max-width: 860px){.app-shell{flex-direction:column}.topbar{display:flex;align-items:center;gap:12px;background:#111827;color:#fff;padding:10px 12px;padding-top:max(10px,env(safe-area-inset-top));position:sticky;top:0;z-index:20}.topbar .icon-button{font-size:20px}.hamburger,.hamburger:before,.hamburger:after{display:block;width:22px;height:2px;background:#fff;border-radius:2px}.hamburger{position:relative}.hamburger:before,.hamburger:after{content:"";position:absolute;left:0}.hamburger:before{top:-7px}.hamburger:after{top:7px}.topbar-title{font-weight:600;font-size:15px}.drawer-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:29}.sidebar{position:fixed;top:0;bottom:0;left:0;width:260px;max-width:82vw;transform:translate(-100%);transition:transform .2s ease;z-index:30;padding-top:max(16px,env(safe-area-inset-top));padding-bottom:max(16px,env(safe-area-inset-bottom));overflow-y:auto}.sidebar.open{transform:translate(0)}.sidebar .brand{display:flex;align-items:center;justify-content:space-between}.drawer-close{display:inline-block;font-size:16px}.main{padding:16px;max-width:100%}.panel{padding:14px;overflow-x:auto}.form-row{flex-direction:column;gap:0}table{font-size:12px}th,td{padding:8px 6px;white-space:nowrap}button{padding:10px 16px;font-size:14px}input,select,textarea{padding:10px 12px;font-size:15px}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(130px,1fr))}}@media (min-width: 861px){.drawer-close{display:none}}